Inventor · disambiguated record
Changhua Zhan
Also filed as: ZHAN CHANGHUA
2 granted patents·0 citations·filing 2019–2023
27Inventor score
Technology areasG01N
Files withUNIV MICHIGAN REGENTS2
Top patents by PatentIndex Score
2 records- 0176US12504409B2Microscale collector-injector technologies for passive environmental vapor sampling and focused injectionUNIV MICHIGAN REGENTS·Filed 2023·Granted Dec 23, 2025·0 cites·21 claims
- 0259US11782033B2Microscale collector-injector technologies for passive environmental vapor sampling and focused injectionUNIV MICHIGAN REGENTS·Filed 2019·Granted Oct 10, 2023·0 cites·20 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →